baber/WOPTO huggingface dataset:
Patent GB-796566-A (GB)
Title: Treatment of aromatic and unsaturated distillates
Inventor: MAISEL DANIEL SCHWARTZ
IPC: C07C11/00
Filed: 1956-11-19
Abstract: <PICT:0796566/IV (b)/1> C6 and C7 aromatic hydrocarbon concentrates free of reactive diolefins are obtained from a naphtha feed containing mainly olefinic and aromatic hydrocarbons by contacting with clay, preferably in the liquid phase at 250-500 DEG  F. to polymerize the reactive diolefines, fractionally distilling in the presence of steam to obtain a light fraction, containing the desired hydrocarbons, which is freed of water and fractionated to obtain the desired concentrates.  In a preferred embodiment a naphtha boiling in the range 120-420 DEG  C. which may have been obtained by cracking gas oil or heavy naphtha is fed to a first claytreating zone 3 under preferred conditions of 250-350 DEG  F., 70-200 p.s.i.g. and 0.25-10 v/v/hr in the liquid phase.  Diane polymers which are formed are carried through by the liquid, which is fed to the first fractionator 5.  From this is taken a side stream to the steam stripper 7 where any toluene is stripped and returned to the fractionator and a heavy naphtha cut (260-420 DEG  F.).  Steam is also injected at the bottom, the total amount of steam used being 5-20 weight per cent of the hydrocarbon feed, the steam to the stripper 7 being 1/3 -\ba1/2 of this total.  Overhead is taken a light fraction (boiling up to 240-290 DEG  F.) and a bottoms polymer stream is removed by line 21. Heat may be supplied by a reboiler.  The light fraction is condensed and water is separated and removed in the receiver 13.  A partial reflux is returned to the column and the remainder of the hydrocarbons are led to the second fractionator 17 from which light materials (up to 165 DEG  F.) are removed overhead, a benzene concentrate (165-185 DEG  F.) taken as a cut and a toluene concentrate (above 185 DEG  F.) removed as bottoms.  The benzene concentrate is of suitable purity to go to a solvent extraction.  The toluene concentrate however is given a second clay treatment under conditions similar to the first in the treating zone 33 and fractionated in a third fractionation zone 35, recovering the toluene concentrate (185-240 DEG  F.) overhead and polymers as bottoms.  The polymers may be recovered as by-products.  Suitable clays are activated bentonite, attapulgus clay, fuller's earth, floridin and superfiltrol.
Patent GB-863335-A (GB)
Title: Improvements in or relating to fuel elements for gas-cooled nuclear reactors
Inventor: WYATT LESLIE MARK
IPC: G21C3/338
Filed: 1958-11-04
Abstract: 863,335. Nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 6, 1959 [Nov. 4, 1958], No. 35305/58. Class 39(4). A fuel element cluster comprises sheathed fuel rods 1 spaced on a parallelogram, as shown square, lattice and supported by studs 3 between a pair of plates 2 having holes 4 for the passage of coolant. Each rod has a helical fin, a particular four rods 1 having fins 5..8, the fins of adjacent rods being of opposite hands so that the coolant gas has components of flow indicated by arrows 10..13 to give an improved heat transfer. The fins may be integral with the sheaths or separate therefrom and be welded at their points of contact 14.
Patent GB-856120-A (GB)
Title: A method of manufacturing antistatic plastic mouldings
IPC: C08K5/00
Filed: 1958-11-04
Abstract: A moulded article having a surface on which the accumulation of static electricity is prevented is made by a process in which a core of a powdered synthetic powder selected from polyvinyl chloride, a vinyl chloride-vinyl acetate copolymer, a methacrylic resin, polyethylene, and polystyrene is coated with a synthetic resin powder containing an antistatic agent, and the coated core is hot-pressed between moulds.  When the core is of polyethylene or polystyrene the article may, alternatively, be made by preforming the core between moulds coated with a solution of an antistatic agent of the quaternary ammonium salt type, and the preform then transferred to a press in which it is moulded between heated moulds.  The quaternary ammonium salt may consist of stearamidopropyldimethyl-b -hydroxyethyl ammonium nitrate.  Other antistatic agents specified are of the alkylpyridinium salt, aliphatic alcohol phosphate, polyoxyethyleneglycol alkyl ester, polyoxyethylene glycol, ether, sorbitan fatty acid ester, irridazoline, and betaine types.  In one method described in the examples a thin layer of synthetic resin impregnated with antistatic agent is placed on each side of a core tablet and the assembly moulded under heat and pressure.  In another method a solution of the antistatic agent is sprayed on to the core tablet prior to moulding under heat and pressure.
Patent GB-1193678-A (GB)
Title: Forming Tube Suitable for Winding Glass Fibers
IPC: B31C3/00
Filed: 1967-08-02
Abstract: 1,193,678. Forming tubes. SONOCO PRODUCTS CO. 2 Aug., 1967 [16 Sept., 1966], No. 35511/67. Heading F2P.  A non-rigid forming tube suitable for supporting wound glass fibres comprises a single spirally wound ply of flexible strip material having deckled side edges, the strip being wound with the edges of adjacent convolutions in overlapping relationship and adhesive being interposed between the overlapping edges. The tube is collapsible longitudinally. In the construction shown a strip 23 of fibrous material such as paper is wound on to a mandrel 14, adhesive being supplied by a glue applicator 31. The tube 20 formed is rotated and fed longitudinally by a flexible endless belt 16 to a liquid applicator 21 where a water-repellent layer is applied to the tube. The layer is applied by a wick below a valve controlled orifice in a reservoir (Fig. 2, not shown). The tube is then cut into suitable lenths.
Patent GB-433294-A (GB)
Title: Improvements relating to trees or stretchers for boots and shoes
IPC: A43D3/04
Filed: 1935-01-17
Abstract: 433,294. Shoe trees. WOOLMAN, J., Cardah, Olton Road, Shirley, Birmingham. Jan. 17, 1935, No. 35517/33. [Class 17 (iii)] Relates to trees or stretchers of the kind comprising an inflatable rubber body with a local reinforcement of canvas or other non-extensible material for controlling the inflation at desired parts, and consists in a construction wherein the reinforcement d surrounds the rear part of the inflatable body a and has forward extension tongues d<1> disposed along the top and bottom of the body. The other tree of the pair may be connected with the first by a forked connector, so that the two may be inflated together.
Patent GB-959044-A (GB)
Title: Reinforcing element for ferro-concrete building parts
IPC: E04C5/065
Filed: 1961-10-02
Abstract: 959,044. Reinforcing elements for concrete structures; reinforced concrete beams. RHEINBAU G.m.b.H. Oct. 2, 1961 [Oct. 7, 1960], No. 35520/61. Heading E1V. A reinforcing element for concrete building parts such as ceilings, walls, roofs or the like comprises a structural steel bar 1 extending longitudinally of the element and two structural steel rods 2, 3 each bent in undulatory form, the crests of the undulations being fixed to the bar with the plane containing the undulations of one rod at an acute angle with the plane containing the undulations of the other rod. The rods may be connected to one another at intervals by members 5 which may have projections 6 for securing additional longitudinal reinforcing rods in position. In an application of the invention, Fig. 3 (not shown) the reinforcing element is pressed into a concrete bar which contains ordinary reinforcing rods to form a composite metal-concrete lattice beam.
Patent GB-389931-A (GB)
Title: Improvements in engine starters
IPC: F02N15/06
Filed: 1931-12-24
Abstract: 389,931. Turning-gear. E C LIP S E MACHINE CO., Elmira, New York, U.S.A. Dec. 24, 1931, No. 35637. Convention date, Dec. 31, 1930. [Class 7 (v).] In an engine starter in which the starter pinion 16 is advanced into engagement with the engine gear 17 by the unthreading of a set of helical springs 19, secured to the pinion, relatively to a set of helical springs 18 secured to the shaft 10 of the starting motor, rotation is transmitted from the shaft 10 to the pinion 16 by means of a wedging or a positive connection between the free ends of the two sets of springs, this connection causing the pitch of the springs to increase. In one form, Figs. 1 and 2, the ends of the springs engage axial grooves 22 in the pinion and in a collar 11, which is secured on the shaft by a key 12 and by a radial pin 13 locked by a spring ring 14. The springs are retained in position by spring rings 24, 29 engaging grooves in the ends of the springs, and by retaining rings 27, 31 engaging shouldered portions of the collar and the pinion. A light spring 37 normally holds the pinion out of engagement with the gear 17. On rotation of the shaft 10, the pinion advances into engagement with the gear 17, the outturned ends 32, 33 bear against either side of a loose collar 34, and the pinion is then driven through the springs and the frictional coupling between the ends of the springs and the collar 34. In a modification, the collar 34 is omitted and the ends 32, 33 of the spring are hooked to enable them to engage positively at the end of the axial movement of the pinion.
Patent GB-520806-A (GB)
Title: Improvements in or relating to photographic recording apparatus
IPC: G03B27/62
Filed: 1938-12-08
Abstract: 520,806. Photographic apparatus. KODAK, Ltd. Dec. 8, 1938, No. 35792. Convention date, Dec. 8, 1937. [Class 98 (i)] When two documents are fed at a time by the drum of a photographic document-copying apparatus, the feeding system is automatically stopped. The feeding drum 11 is driven by an electric motor 20 in the circuit of which is a switch 28, a shunted relay 40 and an auxiliary switch 45. The documents 13 are fed through a feed hopper to a straightening roller 15 mounted on a flexible shaft 16, trip fingers 18 and guide wires aligning the document before its entry into the camera field. A U-shaped bracket is formed with side members 23 and a connecting back member 24, and has openings 26 through which a shaft 17 supports the bracket. The switch 28 is mounted on bearings on the walls 23 and engages a stop which is an adjustable screw 29. Depending portions 25 of the sides 23 support a shaft 33 bearing spaced members 34. Spacing members 35, 38, a shaft 36 and a roller 37 are carried by the members 34, the roller 37 riding on the roller 15. As the documents are fed under the roller 15, the latter is raised slightly and moves the switch 28 about its pivot 27. When two documents are fed together, the switch is moved into engagement with the stop 29 and is momentarily opened. A coil 39 of the relay 40 is then energized and the solenoid 41 brings a member 42 out of engagement with the contacts 43 and opens the motor circuit. If thicker documents are to be fed, a switch 45 is closed and this renders the action on the switch 28 ineffective. In the modification shown in Fig. 4, a spring-urged latch 48 is pivoted on extensions 47 of the side members 23. The crossmember 35 of the spaced members 34 is formed with a long thin tapering arm 60, and when the members 34 are pivoted sufficiently to open the switch 28, the lever 60 is brought behind the latch. The manual reset relay 40 may in this case be omitted. In Fig. 7, the roller 15 is mounted directly on a shaft 36, and rides on the surface of the drum 11 and acts both as a straightening roller and a thickness gauge. A screw 63 with knurled finger-piece 65 is used to adjust the switch 28 for any particular thickness of paper. The roller 15 is held on the drum 11 by means of a leaf spring 70 which bends sufficiently when the roller is lifted by documents. A slightly yieldable leaf spring 77 is engaged by a spring pressed plunger 75 when the roller is lifted by two documents and the switch 28 is opened.
Patent GB-626894-A (GB)
Title: Improvements in and relating to the separation of gases at low temperature
IPC: F25J3/02
Filed: 1946-12-03
Abstract: 626,894. Gas separation. AICHER, A. A., and PETROCARBON, Ltd. Dec. 3, 1946, No. 35801. [Class 8(ii)] In a method for the separation of gases at low temperature by liquefaction and fractionation heat withdrawn during one operation is transferred for use in another operation by means of a circulating heat carrier which is evaporated in withdrawing heat during the one operation and is condensed in introducing heat for use in the other operation, and is circulated by a pump which deals with the carrier in the liquid state only. As applied to a separating apparatus wherein a mixture of hydrogen and saturated and unsaturated hydrocarbon is cooled in heat exchangers 11a, 11b, 11c and fractionated in columns 12, 13, 14, the carrier comprises propylene circulated in two circuits. In the first a pump 17 draws from a reservoir 15 and delivers at -40‹C. through a line 30 to a condenser evaporator 14a where the carrier is vapourized by heat exchange with a mixture of gaseous propylene and propane escaping from column 14. Simultaneously liquid carier is vapourized in traversing exchanger 11b. The two vapour streams are mixed and one portion traverses ducts 34, 35 where it is joined at 47 by carrier vapour from a vapourizer-condenser 19, and these vapours then traverse the fractionating column reboiler 12b, the resulting liquid carrier being returned to the pump 17. The other portion of the vapour stream is condensed in an ammonia refrigerant condenser 16 before being returned to the pump 17. In the second carrier circuit propylene at 0‹C. is drawn from a reservoir 18 and is delivered by a pump 20 through a line 41 to the heat exchanger 11a. Part of the resulting vapour traversing a line 42 is condensed in the reboiler 13b and is then returned to the pump and the remainder of the vapour is condensed at 19 before being returned to the pump. Heat exchanger 11c and condensers 12a, 13a together with a reboiler 14b have heating and cooling means other than those described above.
Patent GB-753537-A (GB)
Title: Improvements in and relating to latch mechanisms
Inventor: SIGEL CARL A
IPC: E05C3/40
Filed: 1953-12-24
Abstract: 753,537. Latch fastenings. CHICAGO FORGING & MANUFACTURING CO. Dec. 24, 1953, No. 35863/53. Class 44. In a latch mechanism of the kind comprising a bolt-like keeper mounted on either the hood or the bonnet of a vehicle and which is arranged to penetrate a hole 10 in a plate 1 carried by the bonnet or hood respectively and to be held there by a spring-loaded latch 105 which engages a part of the keeper and holds it against withdrawal from the hole, manually operable means being provided for positively disengaging the latch from the keeper, the mechanism includes a safety latch 110 which is rendered inoperative when the means for disengaging the main latch and keeper are actuated, but which holds the hood and bonnet together should the main latch and keeper become disengaged without actuation of the said means, the safety latch being pivotally mounted on the vehicle part carrying the plate 1 and main latch and the means for disengaging the main latch and keeper comprising an operating lever 100 which bears against the safety latch. In the construction shown, the plate 1 is mounted on the bonnet of the vehicle, and the keeper is mounted on the hood by means of a plate 35. The keeper has a threaded stem 36 so that it is adjustable and a conical head 37 which has a face 39a adjacent the stem 36 which is the part engaged by the latch 105. A compression spring 40 surrounds the stem 36 and is trapped between a fixed abutment 41 and an abutment 42 on the stem 36. The spring 40 is compressed when the latch 105 is in engagement with the face 39a and when the latch is released it raises the hood. The latch 105 and the lever 100 are both pivoted on the plate 1 and a horn103 on the lever 100 is held in contact with a lug 108 on the latch 105 by a spring 104 which is anchored at one end to the lever 100 and at the other end to the latch 105. The spring 104 also keeps the latch 105 in engagement with the keeper. The safety latch 110 is pivoted to a bracket 112 on the plate 1 and is loaded by a spring 113 to a position overlying a lip 51 of a member 50 of the bonnet. It is moved away from the member 50 when the main latch 105 releases the keeper by a bar 116 forming part of the lever 100 which is guided in a slot in the bracket 112 and bears against the lower part of the safety latch 110. Specification 693,341 is referred to.
Patent GB-926148-A (GB)
Title: Production of dead burned magnesia
IPC: C01F5/08
Filed: 1960-10-20
Abstract: A two-step burning process for making deadburned magnesia from magnesium hydroxide consists in heating moist magnesium hydroxide to convert it to MgO having a crystallite diameter in excess of 0,1 micron, passing the dry MgO without intermediate cooling to ambient temperature and at a temperature of above 600 DEG F. to means for forming it into small compressed bodies under a pressure of at least 20,000 p.s.i.g., passing the dry compressed bodies at elevated temperature to means for forming small briquettes under a pressure of at least 20,000 p.s.i.g. while recirculating at least 16% by weight of formed scrap material at least to the compression feed, and then passsing the briquettes in heated condition to a furnace and heating them to a temperature to produce dead-burned MgO having a bulk density of at least 3,25 gms/cc.  The first heating may be effected in a multiple hearth furnace at a temperature from 1700 DEG -2200 DEG F., preferably 1800 DEG F., while the briquettes, which may be compressed in one or more stages, may be heated in a vertical kiln to 3700 DEG F. or in a rotary kiln to 3200 DEG F.  The briquetting step is preferably effected with a recirculation of at least 15% by weight of briquetted material. Sintering agents, such as iron oxide, silica, boron compounds, zircon, titania, or alumina may be added in amounts from 0,1-10% by weight to the magnesium hydroxide before calcining, to the calcined magnesia before briquetting, to the briquettes before dead-burning in a rotary kiln, or may be blown into the kiln at the hot or cold end.
Patent GB-1517217-A (GB)
Title: Buoyant infinitely adjustable working rig
IPC: E02B17/02
Filed: 1975-09-01
Abstract: 1517217 Offshore platforms MANNESMANNROHREN-WERKE AG 1 Sept 1975 [2 Sept 1974] 35956/75 Heading E1H A jacket for an offshore platform comprises a foundation 4, a lower buoyancy member 3, an upper buoyancy member 2 and a floatable working platform 1, which are adjustably interconnected by first and second support systems 5 and 6. In operation, the assembled jacket is floated to a site, possibly with the foundation partially lowered for stability, the foundation is then lowered on to a sea bed, and the members 2 and 3 ballasted to adjust their vertical position so that the platform 1 extends above the water level. The outer support 6 is fixed to the foundation 4, and the members 2 and 3 are adjustable thereon, e.g. by rack-and-pinion mechanisms, and the support 5 is fixed to the member 3 with the member 2 and platform 1 adjustable thereon. The member 2 can be formed as a ring which is braced internally. The foundation can have additional weights to improve its stability. The positions of the support systems 5 and 6 can be reversed.
Patent GB-821605-A (GB)
Title: Improvements in or relating to light-control devices for cameras
Inventor: JACKSON DONALD
IPC: G03B17/12
Filed: 1954-12-13
Abstract: 821,605. Optical filters. PYE Ltd. Dec. 13, 1955 [Dec. 13. 1954]. No. 35981/54. Classes 97(1) and 98(1) A variable density light filter particularly for use in television cameras consists of two discs or elongated plates mounted one behind the other each element having a density which varies continuously along or around it from a maximum to a minimum value the two elements being so arranged that their densities vary in opposite directions and a drive being provided to move the elements in opposite directions to increase or decrease simultaneously the main density of that part of each element through which the light passes. Fig. 1 shows a portion of a television camera comprising a lens turret plate 16 rotatable on bearings 26, 27, 28 and two graded opacity discs 1, 2 rotatable on a bearing 32 and respectively having gear teeth 5, 6. The discs are arranged as shown in Fig. 2 so that the opacity of one increases in the direction in which the opacity in the other decreases the discs being driven simultaneously in opposite directions by gearing operated by a driving shaft 9 controlled by a potentiometer 21 having microswitches to prevent the dividing line between the opacities of the two discs from entering the lens aperture 17. A gear 18 operated by a spindle 19 adjusts simultaneously the iris diaphragms of the lenses held by the plate 16 as described in Specifications 670,581 and 706,922. Specifications 693,385, 699,104 and 723,872 also are referred to.
Patent GB-1009093-A (GB)
Title: Control arrangement for mobile cranes, excavators or similar machines
Inventor: MATTSON SVEN
IPC: G05G9/00
Filed: 1964-09-02
Abstract: 1,009,093. Controlling winches. LANDSVERK A. B. Sept. 2, 1964, No. 36028/64. Heading B8B. [Also in Division F2] Hand levers 12, 12a, Fig. 2, for controlling a pair of winch drums of a crane, excavator etc. via a gear box 2 and valves 11, 11a associated with fluid actuated clutch and brake means, are movable in one direction about pivots 28, 28a to actuate the gear box 2 through push rods 13, 13a and in the other direction at right angles to actuate the valves 11, 11a through lever sections 10, 10a. The gear box 2 drives a common shaft (not shown) for a pair of drums which are clutched to the shaft when the respective lever 12 or 12a is moved to any of the positions g, h, i, j, the brakes on the drum then being automatically released. Movement of of the levers to position b with the gear in neutral controls the release of the brake of the relevant drum for lowering under load etc. without clutch engagement.
Patent GB-1048824-A (GB)
Title: Improvements in or relating to piano and organ keyboards and frames
Inventor: VICKERS ARTHUR EDWARD
Filed: 1962-09-22
Abstract: 1,048,824. Piano and organ keyboards. BRITISH PIANO ACTIONS Ltd. Sept. 10, 1963 [Sept. 22, 1962], No. 36138/62. Heading G5J. The balance pin 11 of a piano or other keyboard instrument action has on its free end a plastic covering in the form of a sleeve or coating of material such as polytetrafluorethylene or fluorinated ethylene propylene which is in rubbing contact with the slot 6 of the key. This arrangement eliminates the cloth bushing normally glued to the chase 5 to form a lining for the slot 6. A similar plastic covering may be provided on the bat pin 4. The chase may be dispensed with.
Patent GB-973403-A (GB)
Title: Moisture resistant cellulosic packaging and method therefor
IPC: B65D65/38
Filed: 1963-09-13
Abstract: 973,403. Laminates. UNION CARBIDE CORPORATION. Sept. 13, 1963 [Sept. 14, 1962], No. 36222/63. Heading B5N. Moisture-proof cellulosic packaging material is made by enclosing a cellulosic package blank between two sheets of heat-shrinkable thermoplastic film, sealing the sheets together around the blank and shrinking them, uniformly or otherwise, into a close fit by heat treatment, e.g. with an air jet at 100‹ C. Heat sealing is preferred but solvent, adhesive or other sealing methods may be used. The blank may comprise two sheets of linerboard enclosing a sheet of fluted paperboard scored for folding and having flaps separated by slots. For blanks so shaped the sheets are sealed between the slots and divided along the seals. The carton formed on folding the blank may be sealed with pressure-sensitive adhesive strips or by hotmelt adhesives or staples, preferably hot staples. The thermoplastic films may be polymers of alpha-olefins of 2-9 C atoms or copolymers thereof, e.g. with styrene, vinyl stearate, butene, vinyl acetate, vinyl formate, methyl methacrylate, monobutyl maleate, 2-ethyl hexyl acrylate, N - methyl - N - vinyl acetamide, methacrylic acid, ethyl acrylate, acrylic acid, isoprene, butadiene, acrylamide, vinyl triethoxysilane, bicycloheptene, bicycloheptadiene, divinyl phosphonate, polycarbonates,- polyhydroxyethers or epoxide resins.